I mostly write javascript all day, and I'm pretty sure that less than 0.01% of the javascript I've ever written is called often enough to make closure allocatio

I mostly write javascript all day, and I'm pretty sure that less than 0.01% of the javascript I've ever written is called often enough to make closure allocation time a serious concern. By all means, optimize if you're writing an inner loop body that gets called a million times per pageload, but I think most of us don't need to worry about it.